Chapter 11 Chemical Reactions 11.3 Reactions in Aqueous Solution 11.1 Describing Chemical Reactions 11.2 Types of Chemical Reactions 11.3 Reactions in Aqueous Solution Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved.

Classifying Reactions Do Now: __Ag + __Cu(NO3)2 → __Cu + __AgNO3 __Cl2 + __NaBr → __NaCl + __Br2 Balance the equations. Identify the types of reaction. Will the reactions proceed? Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved.

Classifying Reactions Predict the products and balance the following: Mg + AlCl3 → Br2 + MgCl2 → Fe + CuCl2 → Zn + HNO3 → Will the reactions proceed? Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved.

Classifying Reactions Predict the products and balance the following: AgNO3 + KCl → AgNO3 + Na2CO3 → AgNO3 + KNO3 → AgNO3 + Na3PO4 → Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved.

Classifying Reactions Predict the products and balance the following: Pb(NO3)2 + K2CrO4 → Cu(OH)2 + H3PO4 → Zn + H2CO3 → Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved.

Classifying Reactions Do Now: Predict the products NaCl(aq) + AgNO3(aq) Cu(OH)2(aq) + H3PO4(aq) → Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved.

Solubility Rules for Ionic Compounds Interpret Data Solubility Rules for Ionic Compounds Compounds Solubility Exceptions Salts of alkali metals and ammonia Soluble Some lithium compounds Nitrate salts and chlorate salts Few exceptions Sulfate salts Compounds of Pb, Ag, Hg, Ba, Sr, and Ca Chloride salts Compounds of Ag and some compounds of Hg and Pb Carbonates, phosphates, chromates, sulfides, and hydroxides Most are insoluble Compounds of the alkali metals and of ammonia Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved.

Predicting the Formation of a Precipitate Use the solubility rules table to determine which compounds below are insoluble. PbCl2 KOH NaOH SrSO4 Fe2S3 Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved. 8

Classifying Reactions Do Now: Predict the products of the following reaction. FeCl3 (aq) + 3KOH (aq) → Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved.

Predict the products of the above reaction. Do Now: FeCl3 (aq) + 3KOH (aq) → Predict the products of the above reaction. Write a complete ionic equation. Write the net ionic equation. Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved.

Complete ionic equation Net Ionic Equations Complete ionic equation shows dissolved ionic compounds as dissociated free ions. Ag+(aq) + NO3–(aq) + Na+(aq) + Cl–(aq) → AgCl(s) + Na+(aq) + NO3–(aq) Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved. 11

Net Ionic Equations spectator ion - ion that appears on both sides of equation and is not involved in the reaction. Ag+(aq) + NO3–(aq) + Na+(aq) + Cl–(aq) → AgCl(s) + Na+(aq) + NO3–(aq) Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved.

Ag+(aq) + Cl–(aq) → AgCl(s) Make sure ionic charge is balanced! Net Ionic Equations net ionic equation – only shows particles directly involved in the chemical change. Ag+(aq) + Cl–(aq) → AgCl(s) Make sure ionic charge is balanced! Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved.

MgCl2(aq) + 2 NaOH(aq) → Mg(OH)2(s) + 2 NaCl(aq) Net Ionic Equations Write the complete ionic equation and net ionic equation for: MgCl2(aq) + 2 NaOH(aq) → Mg(OH)2(s) + 2 NaCl(aq) Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved.

Writing and Balancing Net Ionic Equations Sample Problem 11.8 Writing and Balancing Net Ionic Equations Aqueous solutions of iron(III) chloride and potassium hydroxide are mixed. A precipitate of iron(III) hydroxide forms. Identify the spectator ions and write a balanced net ionic equation for the reaction. Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved.

1. Write a balanced equation. Sample Problem 11.8 1. Write a balanced equation. FeCl3 (aq) + 3KOH (aq) → Fe(OH)3(s) + 3KCl(aq) Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved.

2. Write the complete ionic equation. Sample Problem 11.8 2. Write the complete ionic equation. Fe3+(aq) + 3Cl–(aq) + 3K+(aq) + 3OH–(aq) → Fe(OH)3(s) + 3K+(aq) + 3Cl–(aq) Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved.

3. Eliminate spectator ions. Sample Problem 11.8 3. Eliminate spectator ions. Fe3+(aq) + 3Cl–(aq) + 3K+(aq) + 3OH–(aq) → Fe(OH)3(s) + 3K+(aq) + 3Cl–(aq) Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved.

Fe3+(aq) + 3OH–(aq) → Fe(OH)3(s) Sample Problem 11.8 4. Write the net ionic equation. Fe3+(aq) + 3OH–(aq) → Fe(OH)3(s) Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved.

Na2CO3(aq) + CaCl2(aq) → NaCl(aq) + CaCO3(s) Net Ionic Equations Do Now: Balance the reaction, then write the complete ionic equation and net ionic equation for: Na2CO3(aq) + CaCl2(aq) → NaCl(aq) + CaCO3(s) Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved.

Predicting the Formation of a Precipitate Do Now: Write the complete ionic equation and net ionic equation for the reaction below: K3PO4(aq) + Ba(OH)2(aq) → Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved. 21

Sample Problem 11.9 Aqueous potassium carbonate reacts with aqueous strontium nitrate. Identify the precipitate formed and write the net ionic equation. Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved.

Sample Problem 11.9 Aqueous potassium carbonate reacts with aqueous strontium nitrate. Identify the precipitate formed and write the net ionic equation. CO32–(aq) + Sr2+(aq) → SrCO3(s) Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved.

END OF 11.3 Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved.